3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998-1999 Free Software Foundation, Inc.
6 # This file is part of GDB.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 read="class level macro returntype function formal actual attrib default init invalid_p fmt print print_p description"
24 # dump out/verify the doco
37 # hiding something from the ``struct info'' object
41 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
42 # LEVEL is a predicate on checking that a given method is
43 # initialized (using INVALID_P).
47 # The name of the MACRO that this method is to be accessed by.
51 # For functions, the return type; for variables, the data type
55 # For functions, the member function name; for variables, the
56 # variable name. Member function names are always prefixed with
57 # ``gdbarch_'' for name-space purity.
61 # The formal argument list. It is assumed that the formal
62 # argument list includes the actual name of each list element.
63 # A function with no arguments shall have ``void'' as the formal
68 # The list of actual arguments. The arguments specified shall
69 # match the FORMAL list given above. Functions with out
70 # arguments leave this blank.
74 # Any GCC attributes that should be attached to the function
75 # declaration. At present this field is unused.
79 # To help with the GDB startup a default static gdbarch object
80 # is created. DEFAULT is the value to insert into the static
81 # gdbarch object. If empty ZERO is used.
85 # Any initial value to assign to a new gdbarch object after it
86 # as been malloc()ed. Zero is used by default.
90 # A predicate equation that validates MEMBER. Non-zero is returned
91 # if the code creating the new architecture failed to initialize
92 # the MEMBER or initialized the member to something invalid.
93 # By default, a check that the value is no longer equal to INIT
94 # is performed. The equation ``0'' disables the invalid_p check.
98 # printf style format string that can be used to print out the
99 # MEMBER. The default is to assume "%ld" is safe. Sometimes
100 # "%s" is useful. For functions, this is ignored and the
101 # function address is printed.
105 # An optional equation that converts the MEMBER into a value
106 # suitable for that FMT. By default it is assumed that the
107 # member's MACRO cast to long is safe.
111 # An optional indicator for any predicte to wrap around the
113 # # -> Wrap print up in ``#ifdef MACRO''
114 # exp -> Wrap print up in ``if (${print_p}) ...
128 # See below (DOCO) for description of each field
130 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct:::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
132 i:2:TARGET_BYTE_ORDER:int:byte_order::::BIG_ENDIAN
134 v:1:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address:0
135 v:1:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):0
136 #v:1:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):0
137 v:1:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):0
138 v:1:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):0
139 v:1:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):0
140 v:1:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):0
141 v:1:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):0
142 v:1:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):0
143 v:1:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):0
145 f:1:TARGET_READ_PC:CORE_ADDR:read_pc:int pid:pid::0:0
146 f:1:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, int pid:val, pid::0:0
147 f:1:TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:0
148 f:1:TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:0
149 f:1:TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:0
150 f:1:TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:0
152 v:2:NUM_REGS:int:num_regs::::0:-1
153 v:2:SP_REGNUM:int:sp_regnum::::0:-1
154 v:2:FP_REGNUM:int:fp_regnum::::0:-1
155 v:2:PC_REGNUM:int:pc_regnum::::0:-1
156 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr::0:0
157 v:2:REGISTER_SIZE:int:register_size::::0:-1
158 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
159 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
160 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::0:0
161 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
162 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::0:0
163 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
164 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
166 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
167 v:2:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
168 f:2:CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void:::0:0:gdbarch->call_dummy_location == AT_ENTRY_POINT && gdbarch->call_dummy_address == 0:
169 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1::0x%08lx
170 v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1::0x%08lx
171 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
172 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
173 f:2:PC_IN_CALL_DUMMY:int:pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::0:0
174 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
175 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:::0x%08lx
176 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:::0x%08lx
177 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1::0x%08lx
178 v:2:CALL_DUMMY_STACK_ADJUST:int:call_dummy_stack_adjust::::0::gdbarch->call_dummy_stack_adjust_p && gdbarch->call_dummy_stack_adjust == 0:0x%08lx::CALL_DUMMY_STACK_ADJUST_P
179 f:2:FIX_CALL_DUMMY:void:fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p::0:0
181 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion::::0:::::#
182 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type::::0:::::#
183 f:2:COERCE_FLOAT_TO_DOUBLE:int:coerce_float_to_double:struct type *formal, struct type *actual:formal, actual:::default_coerce_float_to_double
184 f:1:GET_SAVED_REGISTER:void:get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval::generic_get_saved_register:0
186 f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr::0:0
187 f:2:REGISTER_CONVERT_TO_VIRTUAL:void:register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to::0:0
188 f:2:REGISTER_CONVERT_TO_RAW:void:register_convert_to_raw:struct type *type, int regnum, char *from, char *to:type, regnum, from, to::0:0
190 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
191 f:1:PUSH_ARGUMENTS:CORE_ADDR:push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr::0:0
192 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-::0:0
193 f:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp::0:0
194 f:2:POP_FRAME:void:pop_frame:void:-::0:0
196 # I wish that these would just go away....
197 f:2:D10V_MAKE_DADDR:CORE_ADDR:d10v_make_daddr:CORE_ADDR x:x::0:0
198 f:2:D10V_MAKE_IADDR:CORE_ADDR:d10v_make_iaddr:CORE_ADDR x:x::0:0
199 f:2:D10V_DADDR_P:int:d10v_daddr_p:CORE_ADDR x:x::0:0
200 f:2:D10V_IADDR_P:int:d10v_iaddr_p:CORE_ADDR x:x::0:0
201 f:2:D10V_CONVERT_DADDR_TO_RAW:CORE_ADDR:d10v_convert_daddr_to_raw:CORE_ADDR x:x::0:0
202 f:2:D10V_CONVERT_IADDR_TO_RAW:CORE_ADDR:d10v_convert_iaddr_to_raw:CORE_ADDR x:x::0:0
204 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp::0:0
205 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf::0:0
206 f:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf::0:0
207 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::0:0
209 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
210 f:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame::0:0
212 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
213 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
214 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:0
215 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint:0
216 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint:0
217 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
218 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
220 f:2:REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:gdb_addr, gdb_len, rem_addr, rem_len::0:0
222 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
223 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi::0:0
224 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
225 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
226 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
227 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
228 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
229 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
230 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
241 function_list | while eval read $read
244 ${class} ${macro}(${actual})
245 ${returntype} ${function} ($formal)${attrib}
249 invalid_p=${invalid_p}
253 description=${description}
262 /* Dynamic architecture support for GDB, the GNU debugger.
263 Copyright 1998-1999, Free Software Foundation, Inc.
265 This file is part of GDB.
267 This program is free software; you can redistribute it and/or modify
268 it under the terms of the GNU General Public License as published by
269 the Free Software Foundation; either version 2 of the License, or
270 (at your option) any later version.
272 This program is distributed in the hope that it will be useful,
273 but WITHOUT ANY WARRANTY; without even the implied warranty of
274 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
275 GNU General Public License for more details.
277 You should have received a copy of the GNU General Public License
278 along with this program; if not, write to the Free Software
279 Foundation, Inc., 59 Temple Place - Suite 330,
280 Boston, MA 02111-1307, USA. */
282 /* *INDENT-OFF* */ /* \`\`typedef (f)();'' confuses indent */
284 /* This file was created with the aid of \`\`gdbarch.sh''.
286 The bourn shell script \`\`gdbarch.sh'' creates the files
287 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
288 against the existing \`\`gdbarch.[hc]''. Any differences found
291 If editing this file, please also run gdbarch.sh and merge any
292 changes into that script. Conversely, when makeing sweeping changes
293 to this file, modifying gdbarch.sh and using its output may prove
313 #ifndef GDB_MULTI_ARCH
314 #define GDB_MULTI_ARCH 0
317 extern struct gdbarch *current_gdbarch;
320 /* See gdb/doc/gdbint.texi for a discussion of the GDB_MULTI_ARCH
324 /* If any of the following are defined, the target wasn't correctly
328 #if defined (CALL_DUMMY)
329 #error "CALL_DUMMY: replaced by CALL_DUMMY_WORDS/SIZEOF_CALL_DUMMY_WORDS"
334 #if defined (REGISTER_NAMES)
335 #error "REGISTER_NAMES: replaced by REGISTER_NAME"
340 #if defined (EXTRA_FRAME_INFO)
341 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
346 #if defined (FRAME_FIND_SAVED_REGS)
347 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
355 echo "/* The following are pre-initialized by GDBARCH. */"
356 function_list | while eval read $read
361 echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);"
362 echo "/* set_gdbarch_${function}() - not applicable - pre-initialized. */"
363 echo "#if GDB_MULTI_ARCH"
364 echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})"
365 echo "#define ${macro} (gdbarch_${function} (current_gdbarch))"
375 echo "/* The following are initialized by the target dependant code. */"
376 function_list | while eval read $read
381 echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);"
382 echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});"
383 echo "#if GDB_MULTI_ARCH"
384 echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})"
385 echo "#define ${macro} (gdbarch_${function} (current_gdbarch))"
391 echo "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});"
392 if [ "${formal}" = "void" ]
394 echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);"
396 echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});"
398 echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});"
399 echo "#if GDB_MULTI_ARCH"
400 echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})"
401 if [ "${actual}" = "" ]
403 echo "#define ${macro}() (gdbarch_${function} (current_gdbarch))"
404 elif [ "${actual}" = "-" ]
406 echo "#define ${macro} (gdbarch_${function} (current_gdbarch))"
408 echo "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
419 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
422 /* Mechanism for co-ordinating the selection of a specific
425 GDB targets (*-tdep.c) can register an interest in a specific
426 architecture. Other GDB components can register a need to maintain
427 per-architecture data.
429 The mechanisms below ensures that there is only a loose connection
430 between the set-architecture command and the various GDB
431 components. Each component can independantly register their need
432 to maintain architecture specific data with gdbarch.
436 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
439 The more traditional mega-struct containing architecture specific
440 data for all the various GDB components was also considered. Since
441 GDB is built from a variable number of (fairly independant)
442 components it was determined that the global aproach was not
446 /* Register a new architectural family with GDB.
448 Register support for the specified ARCHITECTURE with GDB. When
449 gdbarch determines that the specified architecture has been
450 selected, the corresponding INIT function is called.
454 The INIT function takes two parameters: INFO which contains the
455 information available to gdbarch about the (possibly new)
456 architecture; ARCHES which is a list of the previously created
457 \`\`struct gdbarch'' for this architecture.
459 The INIT function parameter INFO shall, as far as possible, be
460 pre-initialized with information obtained from INFO.ABFD or
461 previously selected architecture (if similar). INIT shall ensure
462 that the INFO.BYTE_ORDER is non-zero.
464 The INIT function shall return any of: NULL - indicating that it
465 doesn't reconize the selected architecture; an existing \`\`struct
466 gdbarch'' from the ARCHES list - indicating that the new
467 architecture is just a synonym for an earlier architecture (see
468 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
469 - that describes the selected architecture (see
474 struct gdbarch *gdbarch;
475 struct gdbarch_list *next;
480 /* Use default: bfd_arch_unknown (ZERO). */
481 enum bfd_architecture bfd_architecture;
483 /* Use default: NULL (ZERO). */
484 const struct bfd_arch_info *bfd_arch_info;
486 /* Use default: 0 (ZERO). */
489 /* Use default: NULL (ZERO). */
492 /* Use default: NULL (ZERO). */
493 struct gdbarch_tdep_info *tdep_info;
496 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
498 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
501 /* Helper function. Search the list of ARCHES for a GDBARCH that
502 matches the information provided by INFO. */
504 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
507 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
508 basic initialization using values obtained from the INFO andTDEP
509 parameters. set_gdbarch_*() functions are called to complete the
510 initialization of the object. */
512 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
515 /* Helper function. Force an update of the current architecture. Used
516 by legacy targets that have added their own target specific
517 architecture manipulation commands.
519 The INFO parameter shall be fully initialized (\`\`memset (&INFO,
520 sizeof (info), 0)'' set relevant fields) before gdbarch_update() is
521 called. gdbarch_update() shall initialize any \`\`default'' fields
522 using information obtained from the previous architecture or
523 INFO.ABFD (if specified) before calling the corresponding
524 architectures INIT function. */
526 extern int gdbarch_update (struct gdbarch_info info);
530 /* Register per-architecture data-pointer.
532 Reserve space for a per-architecture data-pointer. An identifier
533 for the reserved data-pointer is returned. That identifer should
534 be saved in a local static.
536 When a new architecture is selected, INIT() is called. When a
537 previous architecture is re-selected, the per-architecture
538 data-pointer for that previous architecture is restored (INIT() is
541 INIT() shall return the initial value for the per-architecture
542 data-pointer for the current architecture.
544 Multiple registrarants for any architecture are allowed (and
545 strongly encouraged). */
547 typedef void *(gdbarch_data_ftype) (void);
548 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_ftype *init);
550 /* Return the value of the per-architecture data-pointer for the
551 current architecture. */
553 extern void *gdbarch_data (struct gdbarch_data*);
557 /* Register per-architecture memory region.
559 Provide a memory-region swap mechanism. Per-architecture memory
560 region are created. These memory regions are swapped whenever the
561 architecture is changed. For a new architecture, the memory region
562 is initialized with zero (0) and the INIT function is called.
564 Memory regions are swapped / initialized in the order that they are
565 registered. NULL DATA and/or INIT values can be specified.
567 New code should use register_gdbarch_data(). */
569 typedef void (gdbarch_swap_ftype) (void);
570 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
571 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
575 /* The target-system-dependant byte order is dynamic */
577 /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness
578 is selectable at runtime. The user can use the \`\`set endian''
579 command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when
580 target_byte_order should be auto-detected (from the program image
584 /* Multi-arch GDB is always bi-endian. */
585 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
588 #ifndef TARGET_BYTE_ORDER_SELECTABLE_P
589 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE
590 when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */
591 #ifdef TARGET_BYTE_ORDER_SELECTABLE
592 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
594 #define TARGET_BYTE_ORDER_SELECTABLE_P 0
598 extern int target_byte_order;
599 #ifdef TARGET_BYTE_ORDER_SELECTABLE
600 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE
601 and expect defs.h to re-define TARGET_BYTE_ORDER. */
602 #undef TARGET_BYTE_ORDER
604 #ifndef TARGET_BYTE_ORDER
605 #define TARGET_BYTE_ORDER (target_byte_order + 0)
608 extern int target_byte_order_auto;
609 #ifndef TARGET_BYTE_ORDER_AUTO
610 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
615 /* The target-system-dependant BFD architecture is dynamic */
617 extern int target_architecture_auto;
618 #ifndef TARGET_ARCHITECTURE_AUTO
619 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
622 extern const struct bfd_arch_info *target_architecture;
623 #ifndef TARGET_ARCHITECTURE
624 #define TARGET_ARCHITECTURE (target_architecture + 0)
627 /* Notify the target dependant backend of a change to the selected
628 architecture. A zero return status indicates that the target did
629 not like the change. */
631 extern int (*target_architecture_hook) (const struct bfd_arch_info *);
635 /* The target-system-dependant disassembler is semi-dynamic */
637 #include "dis-asm.h" /* Get defs for disassemble_info */
639 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
640 unsigned int len, disassemble_info *info);
642 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
643 disassemble_info *info);
645 extern void dis_asm_print_address (bfd_vma addr,
646 disassemble_info *info);
648 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
649 extern disassemble_info tm_print_insn_info;
650 #ifndef TARGET_PRINT_INSN
651 #define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info)
653 #ifndef TARGET_PRINT_INSN_INFO
654 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
659 /* Explicit test for D10V architecture.
660 USE of these macro's is *STRONGLY* discouraged. */
662 #define GDB_TARGET_IS_D10V (TARGET_ARCHITECTURE->arch == bfd_arch_d10v)
663 #ifndef D10V_MAKE_DADDR
664 #define D10V_MAKE_DADDR(X) (internal_error ("gdbarch: D10V_MAKE_DADDR"), 0)
666 #ifndef D10V_MAKE_IADDR
667 #define D10V_MAKE_IADDR(X) (internal_error ("gdbarch: D10V_MAKE_IADDR"), 0)
671 /* Fallback definition of FRAMELESS_FUNCTION_INVOCATION */
672 #ifndef FRAMELESS_FUNCTION_INVOCATION
673 #define FRAMELESS_FUNCTION_INVOCATION(FI) (0)
677 /* Fallback definition of REGISTER_CONVERTIBLE etc */
678 extern int generic_register_convertible_not (int reg_nr);
679 #ifndef REGISTER_CONVERTIBLE
680 #define REGISTER_CONVERTIBLE(x) (0)
682 #ifndef REGISTER_CONVERT_TO_VIRTUAL
683 #define REGISTER_CONVERT_TO_VIRTUAL(x, y, z, a)
685 #ifndef REGISTER_CONVERT_TO_RAW
686 #define REGISTER_CONVERT_TO_RAW(x, y, z, a)
690 /* Fallback definition for EXTRACT_STRUCT_VALUE_ADDRESS */
691 #ifndef EXTRACT_STRUCT_VALUE_ADDRESS
692 #define EXTRACT_STRUCT_VALUE_ADDRESS_P (0)
693 #define EXTRACT_STRUCT_VALUE_ADDRESS(X) (internal_error ("gdbarch: EXTRACT_STRUCT_VALUE_ADDRESS"), 0)
695 #ifndef EXTRACT_STRUCT_VALUE_ADDRESS_P
696 #define EXTRACT_STRUCT_VALUE_ADDRESS_P (1)
701 /* Fallback definition for REGISTER_NAME for systems still defining
703 #ifndef REGISTER_NAME
704 extern char *gdb_register_names[];
705 #define REGISTER_NAME(i) gdb_register_names[i]
709 /* Set the dynamic target-system-dependant parameters (architecture,
710 byte-order, ...) using information found in the BFD */
712 extern void set_gdbarch_from_file (bfd *);
715 /* Explicitly set the dynamic target-system-dependant parameters based
716 on bfd_architecture and machine. */
718 extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long);
721 /* Initialize the current architecture to the "first" one we find on
724 extern void initialize_current_architecture (void);
726 /* Helper function for targets that don't know how my arguments are
729 extern int frame_num_args_unknown (struct frame_info *fi);
732 /* gdbarch trace variable */
733 extern int gdbarch_debug;
735 extern void gdbarch_dump (void);
740 #../move-if-change new-gdbarch.h gdbarch.h
741 if ! test -r gdbarch.h
743 echo "gdbarch.h missing? cp new-gdbarch.h gdbarch.h" 1>&2
744 elif diff -c gdbarch.h new-gdbarch.h
746 echo "gdbarch.h unchanged" 1>&2
748 echo "gdbarch.h has changed? cp new-gdbarch.h gdbarch.h" 1>&2
764 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
766 /* Just include everything in sight so that the every old definition
767 of macro is visible. */
768 #include "gdb_string.h"
772 #include "inferior.h"
773 #include "breakpoint.h"
774 #include "gdb_wait.h"
778 #include "gdbthread.h"
779 #include "annotate.h"
780 #include "symfile.h" /* for overlay functions */
785 /* Static function declarations */
787 static void verify_gdbarch (struct gdbarch *gdbarch);
788 static void init_gdbarch_data (struct gdbarch *);
789 static void init_gdbarch_swap (struct gdbarch *);
790 static void swapout_gdbarch_swap (struct gdbarch *);
791 static void swapin_gdbarch_swap (struct gdbarch *);
793 /* Convenience macro for allocting typesafe memory. */
796 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
800 /* Non-zero if we want to trace architecture code. */
802 #ifndef GDBARCH_DEBUG
803 #define GDBARCH_DEBUG 0
805 int gdbarch_debug = GDBARCH_DEBUG;
809 # gdbarch open the gdbarch object
811 echo "/* Maintain the struct gdbarch object */"
813 echo "struct gdbarch"
815 echo " /* basic architectural information */"
816 function_list | while eval read $read
819 "i" ) echo " ${returntype} ${function};" ;;
823 echo " /* target specific vector. */"
824 echo " struct gdbarch_tdep *tdep;"
826 echo " /* per-architecture data-pointers */"
830 echo " /* per-architecture swap-regions */"
831 echo " struct gdbarch_swap *swap;"
834 /* Multi-arch values.
836 When extending this structure you must:
840 Declare set/get functions and define the corresponding
843 gdbarch_alloc(): If zero/NULL is not a suitable default,
844 initialize the new field.
846 verify_gdbarch(): Confirm that the target updated the field
849 gdbarch_dump(): Add a fprintf_unfiltered call to so that the new
852 \`\`default_gdbarch()'': Append an initial value to the static
853 variable (base values on the host's c-type system).
855 get_gdbarch(): Implement the set/get functions (probably using
856 the macro's as shortcuts).
861 function_list | while eval read $read
864 "v" ) echo " ${returntype} ${function};" ;;
865 "f" ) echo " gdbarch_${function}_ftype *${function}${attrib};" ;;
870 # A pre-initialized vector
874 /* The default architecture uses host values (for want of a better
878 echo "extern const struct bfd_arch_info bfd_default_arch_struct;"
880 echo "struct gdbarch default_gdbarch = {"
881 echo " /* basic architecture information */"
882 function_list | while eval read $read
886 if [ "${default}" = "" ]; then
895 /* target specific vector */
897 /*per-architecture data-pointers and swap regions */
899 /* Multi-arch values */
901 function_list | while eval read $read
905 if [ "${default}" = "" ]; then
914 /* default_gdbarch() */
916 struct gdbarch *current_gdbarch = &default_gdbarch;
919 # Create a new gdbarch struct
923 /* Create a new \`\`struct gdbarch'' based in information provided by
924 \`\`struct gdbarch_info''. */
929 gdbarch_alloc (const struct gdbarch_info *info,
930 struct gdbarch_tdep *tdep)
932 struct gdbarch *gdbarch = XMALLOC (struct gdbarch);
933 memset (gdbarch, 0, sizeof (*gdbarch));
935 gdbarch->tdep = tdep;
938 function_list | while eval read $read
941 "i" ) echo " gdbarch->${function} = info->${function};"
945 echo " /* Force the explicit initialization of these. */"
946 function_list | while eval read $read
950 if [ "${init}" != "" -a "${init}" != "0" ]
952 echo " gdbarch->${function} = ${init};"
958 /* gdbarch_alloc() */
964 # verify a new architecture
967 echo "/* Ensure that all values in a GDBARCH are reasonable. */"
971 verify_gdbarch (struct gdbarch *gdbarch)
973 /* Only perform sanity checks on a multi-arch target. */
974 if (GDB_MULTI_ARCH <= 0)
977 if (gdbarch->byte_order == 0)
978 internal_error ("verify_gdbarch: byte-order unset");
979 if (gdbarch->bfd_arch_info == NULL)
980 internal_error ("verify_gdbarch: bfd_arch_info unset");
981 /* Check those that need to be defined for the given multi-arch level. */
983 function_list | while eval read $read
987 if [ "${invalid_p}" ]
989 echo " if ((GDB_MULTI_ARCH >= ${level})"
990 echo " && (${invalid_p}))"
991 echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");"
994 echo " if ((GDB_MULTI_ARCH >= ${level})"
995 echo " && (gdbarch->${function} == ${init}))"
996 echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");"
1005 # dump the structure
1008 echo "/* Print out the details of the current architecture. */"
1015 function_list | while eval read $read
1019 echo " fprintf_unfiltered (gdb_stdlog,"
1020 echo " \"gdbarch_update: ${macro} = 0x%08lx\\n\","
1021 echo " (long) current_gdbarch->${function}"
1022 echo " /*${macro} ()*/);"
1025 test "${fmt}" || fmt="%ld"
1026 test "${print}" || print="(long) ${macro}"
1027 if [ "${print_p}" = "#" ]
1029 echo "#ifdef ${macro}"
1030 echo " fprintf_unfiltered (gdb_stdlog,"
1031 echo " \"gdbarch_update: ${macro} = ${fmt}\\n\","
1034 elif [ "${print_p}" ]
1036 echo " if (${print_p})"
1037 echo " fprintf_unfiltered (gdb_stdlog,"
1038 echo " \"gdbarch_update: ${macro} = ${fmt}\\n\","
1041 echo " fprintf_unfiltered (gdb_stdlog,"
1042 echo " \"gdbarch_update: ${macro} = ${fmt}\\n\","
1054 struct gdbarch_tdep *
1055 gdbarch_tdep (struct gdbarch *gdbarch)
1057 if (gdbarch_debug >= 2)
1058 /* FIXME: gdb_std??? */
1059 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\n");
1060 return gdbarch->tdep;
1064 function_list | while eval read $read
1069 echo "${returntype}"
1070 if [ "${formal}" = "void" ]
1072 echo "gdbarch_${function} (struct gdbarch *gdbarch)"
1074 echo "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})"
1077 echo " if (gdbarch->${function} == 0)"
1078 echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");"
1079 echo " if (gdbarch_debug >= 2)"
1080 echo " /* FIXME: gdb_std??? */"
1081 echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");"
1082 test "${actual}" = "-" && actual=""
1083 if [ "${returntype}" = "void" ]
1085 echo " gdbarch->${function} (${actual});"
1087 echo " return gdbarch->${function} (${actual});"
1092 echo "set_gdbarch_${function} (struct gdbarch *gdbarch,"
1093 echo " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})"
1095 echo " gdbarch->${function} = ${function};"
1100 echo "${returntype}"
1101 echo "gdbarch_${function} (struct gdbarch *gdbarch)"
1103 if [ "${invalid_p}" ]
1105 echo " if (${invalid_p})"
1106 echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");"
1109 echo " if (gdbarch->${function} == ${init})"
1110 echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");"
1112 echo " if (gdbarch_debug >= 2)"
1113 echo " /* FIXME: gdb_std??? */"
1114 echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");"
1115 echo " return gdbarch->${function};"
1119 echo "set_gdbarch_${function} (struct gdbarch *gdbarch,"
1120 echo " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})"
1122 echo " gdbarch->${function} = ${function};"
1127 echo "${returntype}"
1128 echo "gdbarch_${function} (struct gdbarch *gdbarch)"
1130 echo " if (gdbarch_debug >= 2)"
1131 echo " /* FIXME: gdb_std??? */"
1132 echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");"
1133 echo " return gdbarch->${function};"
1139 # All the trailing guff
1143 /* Keep a registrary of per-architecture data-pointers required by GDB
1151 struct gdbarch_data_registration
1153 gdbarch_data_ftype *init;
1154 struct gdbarch_data *data;
1155 struct gdbarch_data_registration *next;
1158 struct gdbarch_data_registrary
1161 struct gdbarch_data_registration *registrations;
1164 struct gdbarch_data_registrary gdbarch_data_registrary =
1169 struct gdbarch_data *
1170 register_gdbarch_data (gdbarch_data_ftype *init)
1172 struct gdbarch_data_registration **curr;
1173 for (curr = &gdbarch_data_registrary.registrations;
1175 curr = &(*curr)->next);
1176 (*curr) = XMALLOC (struct gdbarch_data_registration);
1177 (*curr)->next = NULL;
1178 (*curr)->init = init;
1179 (*curr)->data = XMALLOC (struct gdbarch_data);
1180 (*curr)->data->index = gdbarch_data_registrary.nr++;
1181 return (*curr)->data;
1185 /* Walk through all the registered users initializing each in turn. */
1188 init_gdbarch_data (struct gdbarch *gdbarch)
1190 struct gdbarch_data_registration *rego;
1191 gdbarch->nr_data = gdbarch_data_registrary.nr + 1;
1192 gdbarch->data = xmalloc (sizeof (void*) * gdbarch->nr_data);
1193 for (rego = gdbarch_data_registrary.registrations;
1197 if (rego->data->index < gdbarch->nr_data)
1198 gdbarch->data[rego->data->index] = rego->init ();
1203 /* Return the current value of the specified per-architecture
1208 struct gdbarch_data *data;
1210 if (data->index >= current_gdbarch->nr_data)
1211 internal_error ("gdbarch_data: request for non-existant data.");
1212 return current_gdbarch->data[data->index];
1217 /* Keep a registrary of swaped data required by GDB modules. */
1222 struct gdbarch_swap_registration *source;
1223 struct gdbarch_swap *next;
1226 struct gdbarch_swap_registration
1229 unsigned long sizeof_data;
1230 gdbarch_swap_ftype *init;
1231 struct gdbarch_swap_registration *next;
1234 struct gdbarch_swap_registrary
1237 struct gdbarch_swap_registration *registrations;
1240 struct gdbarch_swap_registrary gdbarch_swap_registrary =
1246 register_gdbarch_swap (void *data,
1247 unsigned long sizeof_data,
1248 gdbarch_swap_ftype *init)
1250 struct gdbarch_swap_registration **rego;
1251 for (rego = &gdbarch_swap_registrary.registrations;
1253 rego = &(*rego)->next);
1254 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1255 (*rego)->next = NULL;
1256 (*rego)->init = init;
1257 (*rego)->data = data;
1258 (*rego)->sizeof_data = sizeof_data;
1263 init_gdbarch_swap (struct gdbarch *gdbarch)
1265 struct gdbarch_swap_registration *rego;
1266 struct gdbarch_swap **curr = &gdbarch->swap;
1267 for (rego = gdbarch_swap_registrary.registrations;
1271 if (rego->data != NULL)
1273 (*curr) = XMALLOC (struct gdbarch_swap);
1274 (*curr)->source = rego;
1275 (*curr)->swap = xmalloc (rego->sizeof_data);
1276 (*curr)->next = NULL;
1277 memset (rego->data, 0, rego->sizeof_data);
1278 curr = &(*curr)->next;
1280 if (rego->init != NULL)
1286 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1288 struct gdbarch_swap *curr;
1289 for (curr = gdbarch->swap;
1292 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1296 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1298 struct gdbarch_swap *curr;
1299 for (curr = gdbarch->swap;
1302 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1306 /* Keep a registrary of the architectures known by GDB. */
1308 struct gdbarch_init_registration
1310 enum bfd_architecture bfd_architecture;
1311 gdbarch_init_ftype *init;
1312 struct gdbarch_list *arches;
1313 struct gdbarch_init_registration *next;
1316 static struct gdbarch_init_registration *gdbarch_init_registrary = NULL;
1319 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1320 gdbarch_init_ftype *init)
1322 struct gdbarch_init_registration **curr;
1323 const struct bfd_arch_info *bfd_arch_info;
1324 /* Check that BFD reconizes this architecture */
1325 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1326 if (bfd_arch_info == NULL)
1328 internal_error ("gdbarch: Attempt to register unknown architecture (%d)", bfd_architecture);
1330 /* Check that we haven't seen this architecture before */
1331 for (curr = &gdbarch_init_registrary;
1333 curr = &(*curr)->next)
1335 if (bfd_architecture == (*curr)->bfd_architecture)
1336 internal_error ("gdbarch: Duplicate registraration of architecture (%s)",
1337 bfd_arch_info->printable_name);
1341 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1342 bfd_arch_info->printable_name,
1345 (*curr) = XMALLOC (struct gdbarch_init_registration);
1346 (*curr)->bfd_architecture = bfd_architecture;
1347 (*curr)->init = init;
1348 (*curr)->arches = NULL;
1349 (*curr)->next = NULL;
1354 /* Look for an architecture using gdbarch_info. Base search on only
1355 BFD_ARCH_INFO and BYTE_ORDER. */
1357 struct gdbarch_list *
1358 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1359 const struct gdbarch_info *info)
1361 for (; arches != NULL; arches = arches->next)
1363 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1365 if (info->byte_order != arches->gdbarch->byte_order)
1373 /* Update the current architecture. Return ZERO if the update request
1377 gdbarch_update (struct gdbarch_info info)
1379 struct gdbarch *new_gdbarch;
1380 struct gdbarch_list **list;
1381 struct gdbarch_init_registration *rego;
1383 /* Fill in any missing bits. Most important is the bfd_architecture
1384 which is used to select the target architecture. */
1385 if (info.bfd_architecture == bfd_arch_unknown)
1387 if (info.bfd_arch_info != NULL)
1388 info.bfd_architecture = info.bfd_arch_info->arch;
1389 else if (info.abfd != NULL)
1390 info.bfd_architecture = bfd_get_arch (info.abfd);
1391 /* FIXME - should query BFD for its default architecture. */
1393 info.bfd_architecture = current_gdbarch->bfd_arch_info->arch;
1395 if (info.bfd_arch_info == NULL)
1397 if (target_architecture_auto && info.abfd != NULL)
1398 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
1400 info.bfd_arch_info = current_gdbarch->bfd_arch_info;
1402 if (info.byte_order == 0)
1404 if (target_byte_order_auto && info.abfd != NULL)
1405 info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN
1406 : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN
1409 info.byte_order = current_gdbarch->byte_order;
1410 /* FIXME - should query BFD for its default byte-order. */
1412 /* A default for abfd? */
1414 /* Find the target that knows about this architecture. */
1415 for (rego = gdbarch_init_registrary;
1416 rego != NULL && rego->bfd_architecture != info.bfd_architecture;
1421 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\n");
1427 fprintf_unfiltered (gdb_stdlog,
1428 "gdbarch_update: info.bfd_architecture %d (%s)\n",
1429 info.bfd_architecture,
1430 bfd_lookup_arch (info.bfd_architecture, 0)->printable_name);
1431 fprintf_unfiltered (gdb_stdlog,
1432 "gdbarch_update: info.bfd_arch_info %s\n",
1433 (info.bfd_arch_info != NULL
1434 ? info.bfd_arch_info->printable_name
1436 fprintf_unfiltered (gdb_stdlog,
1437 "gdbarch_update: info.byte_order %d (%s)\n",
1439 (info.byte_order == BIG_ENDIAN ? "big"
1440 : info.byte_order == LITTLE_ENDIAN ? "little"
1442 fprintf_unfiltered (gdb_stdlog,
1443 "gdbarch_update: info.abfd 0x%lx\n",
1445 fprintf_unfiltered (gdb_stdlog,
1446 "gdbarch_update: info.tdep_info 0x%lx\n",
1447 (long) info.tdep_info);
1450 /* Ask the target for a replacement architecture. */
1451 new_gdbarch = rego->init (info, rego->arches);
1453 /* Did the target like it? No. Reject the change. */
1454 if (new_gdbarch == NULL)
1457 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\n");
1461 /* Did the architecture change? No. Do nothing. */
1462 if (current_gdbarch == new_gdbarch)
1465 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\n",
1467 new_gdbarch->bfd_arch_info->printable_name);
1471 /* Swap all data belonging to the old target out */
1472 swapout_gdbarch_swap (current_gdbarch);
1474 /* Is this a pre-existing architecture? Yes. Swap it in. */
1475 for (list = ®o->arches;
1477 list = &(*list)->next)
1479 if ((*list)->gdbarch == new_gdbarch)
1482 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
1484 new_gdbarch->bfd_arch_info->printable_name);
1485 current_gdbarch = new_gdbarch;
1486 swapin_gdbarch_swap (new_gdbarch);
1491 /* Append this new architecture to this targets list. */
1492 (*list) = XMALLOC (struct gdbarch_list);
1493 (*list)->next = NULL;
1494 (*list)->gdbarch = new_gdbarch;
1496 /* Switch to this new architecture. Dump it out. */
1497 current_gdbarch = new_gdbarch;
1500 fprintf_unfiltered (gdb_stdlog,
1501 "gdbarch_update: New architecture 0x%08lx (%s) selected\n",
1503 new_gdbarch->bfd_arch_info->printable_name);
1507 /* Check that the newly installed architecture is valid. */
1508 verify_gdbarch (new_gdbarch);
1510 /* Initialize the per-architecture memory (swap) areas.
1511 CURRENT_GDBARCH must be update before these modules are
1513 init_gdbarch_swap (new_gdbarch);
1515 /* Initialize the per-architecture data-pointer of all parties that
1516 registered an interest in this architecture. CURRENT_GDBARCH
1517 must be updated before these modules are called. */
1518 init_gdbarch_data (new_gdbarch);
1525 /* Functions to manipulate the endianness of the target. */
1527 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1528 /* compat - Catch old targets that expect a selectable byte-order to
1529 default to BIG_ENDIAN */
1530 #ifndef TARGET_BYTE_ORDER_DEFAULT
1531 #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN
1534 #if !TARGET_BYTE_ORDER_SELECTABLE_P
1535 #ifndef TARGET_BYTE_ORDER_DEFAULT
1536 /* compat - Catch old non byte-order selectable targets that do not
1537 define TARGET_BYTE_ORDER_DEFAULT and instead expect
1538 TARGET_BYTE_ORDER to be used as the default. For targets that
1539 defined neither TARGET_BYTE_ORDER nor TARGET_BYTE_ORDER_DEFAULT the
1540 below will get a strange compiler warning. */
1541 #define TARGET_BYTE_ORDER_DEFAULT TARGET_BYTE_ORDER
1544 #ifndef TARGET_BYTE_ORDER_DEFAULT
1545 #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN /* arbitrary */
1547 int target_byte_order = TARGET_BYTE_ORDER_DEFAULT;
1548 int target_byte_order_auto = 1;
1550 /* Chain containing the \"set endian\" commands. */
1551 static struct cmd_list_element *endianlist = NULL;
1553 /* Called by \`\`show endian''. */
1555 show_endian (char *args, int from_tty)
1558 (TARGET_BYTE_ORDER_AUTO
1559 ? "The target endianness is set automatically (currently %s endian)\n"
1560 : "The target is assumed to be %s endian\n");
1561 printf_unfiltered (msg, (TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"));
1564 /* Called if the user enters \`\`set endian'' without an argument. */
1566 set_endian (char *args, int from_tty)
1568 printf_unfiltered ("\"set endian\" must be followed by \"auto\", \"big\" or \"little\".\n");
1569 show_endian (args, from_tty);
1572 /* Called by \`\`set endian big''. */
1574 set_endian_big (char *args, int from_tty)
1576 if (TARGET_BYTE_ORDER_SELECTABLE_P)
1578 target_byte_order = BIG_ENDIAN;
1579 target_byte_order_auto = 0;
1582 struct gdbarch_info info;
1583 memset (&info, 0, sizeof info);
1584 info.byte_order = BIG_ENDIAN;
1585 gdbarch_update (info);
1590 printf_unfiltered ("Byte order is not selectable.");
1591 show_endian (args, from_tty);
1595 /* Called by \`\`set endian little''. */
1597 set_endian_little (char *args, int from_tty)
1599 if (TARGET_BYTE_ORDER_SELECTABLE_P)
1601 target_byte_order = LITTLE_ENDIAN;
1602 target_byte_order_auto = 0;
1605 struct gdbarch_info info;
1606 memset (&info, 0, sizeof info);
1607 info.byte_order = LITTLE_ENDIAN;
1608 gdbarch_update (info);
1613 printf_unfiltered ("Byte order is not selectable.");
1614 show_endian (args, from_tty);
1618 /* Called by \`\`set endian auto''. */
1620 set_endian_auto (char *args, int from_tty)
1622 if (TARGET_BYTE_ORDER_SELECTABLE_P)
1624 target_byte_order_auto = 1;
1628 printf_unfiltered ("Byte order is not selectable.");
1629 show_endian (args, from_tty);
1633 /* Set the endianness from a BFD. */
1635 set_endian_from_file (bfd *abfd)
1637 if (TARGET_BYTE_ORDER_SELECTABLE_P)
1641 if (bfd_big_endian (abfd))
1644 want = LITTLE_ENDIAN;
1645 if (TARGET_BYTE_ORDER_AUTO)
1646 target_byte_order = want;
1647 else if (TARGET_BYTE_ORDER != want)
1648 warning ("%s endian file does not match %s endian target.",
1649 want == BIG_ENDIAN ? "big" : "little",
1650 TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little");
1654 if (bfd_big_endian (abfd)
1655 ? TARGET_BYTE_ORDER != BIG_ENDIAN
1656 : TARGET_BYTE_ORDER == BIG_ENDIAN)
1657 warning ("%s endian file does not match %s endian target.",
1658 bfd_big_endian (abfd) ? "big" : "little",
1659 TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little");
1665 /* Functions to manipulate the architecture of the target */
1667 enum set_arch { set_arch_auto, set_arch_manual };
1669 int target_architecture_auto = 1;
1670 extern const struct bfd_arch_info bfd_default_arch_struct;
1671 const struct bfd_arch_info *target_architecture = &bfd_default_arch_struct;
1672 int (*target_architecture_hook) (const struct bfd_arch_info *ap);
1674 static void show_endian (char *, int);
1675 static void set_endian (char *, int);
1676 static void set_endian_big (char *, int);
1677 static void set_endian_little (char *, int);
1678 static void set_endian_auto (char *, int);
1679 static void set_endian_from_file (bfd *);
1680 static int arch_ok (const struct bfd_arch_info *arch);
1681 static void set_arch (const struct bfd_arch_info *arch, enum set_arch type);
1682 static void show_architecture (char *, int);
1683 static void set_architecture (char *, int);
1684 static void info_architecture (char *, int);
1685 static void set_architecture_from_file (bfd *);
1687 /* Do the real work of changing the current architecture */
1690 arch_ok (const struct bfd_arch_info *arch)
1692 /* Should be performing the more basic check that the binary is
1693 compatible with GDB. */
1694 /* Check with the target that the architecture is valid. */
1695 return (target_architecture_hook == NULL
1696 || target_architecture_hook (arch));
1700 set_arch (const struct bfd_arch_info *arch,
1706 if (!arch_ok (arch))
1707 warning ("Target may not support %s architecture",
1708 arch->printable_name);
1709 target_architecture = arch;
1711 case set_arch_manual:
1712 if (!arch_ok (arch))
1714 printf_unfiltered ("Target does not support \`%s' architecture.\n",
1715 arch->printable_name);
1719 target_architecture_auto = 0;
1720 target_architecture = arch;
1728 /* Called if the user enters \`\`show architecture'' without an argument. */
1730 show_architecture (char *args, int from_tty)
1733 arch = TARGET_ARCHITECTURE->printable_name;
1734 if (target_architecture_auto)
1735 printf_filtered ("The target architecture is set automatically (currently %s)\n", arch);
1737 printf_filtered ("The target architecture is assumed to be %s\n", arch);
1740 /* Called if the user enters \`\`set architecture'' with or without an
1743 set_architecture (char *args, int from_tty)
1747 printf_unfiltered ("\"set architecture\" must be followed by \"auto\" or an architecture name.\n");
1749 else if (strcmp (args, "auto") == 0)
1751 target_architecture_auto = 1;
1753 else if (GDB_MULTI_ARCH)
1755 const struct bfd_arch_info *arch = bfd_scan_arch (args);
1757 printf_unfiltered ("Architecture \`%s' not reconized.\n", args);
1760 struct gdbarch_info info;
1761 memset (&info, 0, sizeof info);
1762 info.bfd_arch_info = arch;
1763 if (gdbarch_update (info))
1764 target_architecture_auto = 0;
1766 printf_unfiltered ("Architecture \`%s' not reconized.\n", args);
1771 const struct bfd_arch_info *arch = bfd_scan_arch (args);
1773 set_arch (arch, set_arch_manual);
1775 printf_unfiltered ("Architecture \`%s' not reconized.\n", args);
1779 /* Called if the user enters \`\`info architecture'' without an argument. */
1781 info_architecture (char *args, int from_tty)
1783 enum bfd_architecture a;
1786 if (gdbarch_init_registrary != NULL)
1788 struct gdbarch_init_registration *rego;
1789 printf_filtered ("Available architectures are:\n");
1790 for (rego = gdbarch_init_registrary;
1794 const struct bfd_arch_info *ap;
1795 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1800 printf_filtered (" %s", ap->printable_name);
1804 printf_filtered ("\n");
1810 printf_filtered ("There are no available architectures.\n");
1814 printf_filtered ("Available architectures are:\n");
1815 for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++)
1817 const struct bfd_arch_info *ap = bfd_lookup_arch (a, 0);
1822 printf_filtered (" %s", ap->printable_name);
1826 printf_filtered ("\n");
1831 /* Set the architecture from arch/machine */
1833 set_architecture_from_arch_mach (arch, mach)
1834 enum bfd_architecture arch;
1837 const struct bfd_arch_info *wanted = bfd_lookup_arch (arch, mach);
1839 set_arch (wanted, set_arch_manual);
1841 internal_error ("gdbarch: hardwired architecture/machine not reconized");
1844 /* Set the architecture from a BFD */
1846 set_architecture_from_file (bfd *abfd)
1848 const struct bfd_arch_info *wanted = bfd_get_arch_info (abfd);
1849 if (target_architecture_auto)
1851 set_arch (wanted, set_arch_auto);
1853 else if (wanted != target_architecture)
1855 warning ("%s architecture file may be incompatible with %s target.",
1856 wanted->printable_name,
1857 target_architecture->printable_name);
1862 /* Misc helper functions for targets. */
1865 frame_num_args_unknown (fi)
1866 struct frame_info *fi;
1873 generic_register_convertible_not (num)
1881 /* Pointer to the target-dependent disassembly function. */
1882 int (*tm_print_insn) (bfd_vma, disassemble_info *);
1883 disassemble_info tm_print_insn_info;
1887 /* Set the dynamic target-system-dependant parameters (architecture,
1888 byte-order) using information found in the BFD */
1891 set_gdbarch_from_file (abfd)
1896 struct gdbarch_info info;
1897 memset (&info, 0, sizeof info);
1899 gdbarch_update (info);
1902 set_architecture_from_file (abfd);
1903 set_endian_from_file (abfd);
1907 #if defined (CALL_DUMMY)
1908 /* FIXME - this should go away */
1909 LONGEST call_dummy_words[] = CALL_DUMMY;
1910 int sizeof_call_dummy_words = sizeof (call_dummy_words);
1914 /* Initialize the current architecture. */
1916 initialize_current_architecture ()
1920 struct gdbarch_init_registration *rego;
1921 const struct bfd_arch_info *chosen = NULL;
1922 for (rego = gdbarch_init_registrary; rego != NULL; rego = rego->next)
1924 const struct bfd_arch_info *ap
1925 = bfd_lookup_arch (rego->bfd_architecture, 0);
1927 /* Choose the first architecture alphabetically. */
1929 || strcmp (ap->printable_name, chosen->printable_name) < 0)
1935 struct gdbarch_info info;
1936 memset (&info, 0, sizeof info);
1937 info.bfd_arch_info = chosen;
1938 gdbarch_update (info);
1943 extern void _initialize_gdbarch (void);
1945 _initialize_gdbarch ()
1947 add_prefix_cmd ("endian", class_support, set_endian,
1948 "Set endianness of target.",
1949 &endianlist, "set endian ", 0, &setlist);
1950 add_cmd ("big", class_support, set_endian_big,
1951 "Set target as being big endian.", &endianlist);
1952 add_cmd ("little", class_support, set_endian_little,
1953 "Set target as being little endian.", &endianlist);
1954 add_cmd ("auto", class_support, set_endian_auto,
1955 "Select target endianness automatically.", &endianlist);
1956 add_cmd ("endian", class_support, show_endian,
1957 "Show endianness of target.", &showlist);
1959 add_cmd ("architecture", class_support, set_architecture,
1960 "Set architecture of target.", &setlist);
1961 add_alias_cmd ("processor", "architecture", class_support, 1, &setlist);
1962 add_cmd ("architecture", class_support, show_architecture,
1963 "Show architecture of target.", &showlist);
1964 add_cmd ("architecture", class_support, info_architecture,
1965 "List supported target architectures", &infolist);
1967 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
1968 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
1969 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
1970 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
1971 tm_print_insn_info.print_address_func = dis_asm_print_address;
1973 add_show_from_set (add_set_cmd ("archdebug",
1976 (char *)&gdbarch_debug,
1977 "Set architecture debugging.\n\\
1978 When non-zero, architecture debugging is enabled.", &setlist),
1985 #../move-if-change new-gdbarch.c gdbarch.c
1986 if ! test -r gdbarch.c
1988 echo "gdbarch.c missing? cp new-gdbarch.c gdbarch.c" 1>&2
1989 elif diff -c gdbarch.c new-gdbarch.c
1991 echo "gdbarch.c unchanged" 1>&2
1993 echo "gdbarch.c has changed? cp new-gdbarch.c gdbarch.c" 1>&2